To delete the selected item permanently, which of the

Sum of the two numbers is 42. LCM and HCF of that two number is 72 and 6 respectively. Find the sum of reciprocals of the numbers?

LCM of two prime numbers 'p' and 'q' is 323 where p < q. Find the value of 'q'.

Three numbers are in the ratio 2:3:4 and their HCF is 24. Find the numbers?

The product of two numbers is 2880 and their GCD is 24. What is the LCM?

The LCM of two numbers is 1800 while their HCF is 36. If one of the numbers is 432, then the other number is:

Two positive integers have HCF 12 and LCM 180. If the sum of the two numbers is 96, what is the positive difference between them?

Three numbers a, b and c are co-prime to each other such that ab = 88 and bc = 33. Find the value of (a + b + c).

What is the HCF of   (x4  - x2  - 6)    and   (x4  - 4x2  + 3) ?

The HCF of two numbers is 64, and their LCM is 1920. What is the sum of the numbers?

Let N be the greatest number that will divide 82, 105, 128 leaving the same remainder in each case. Then sum of the digits in N is: